CODEWITHSUNDEEP
php
zouzou
zouzou

Reputation: 41

Check if exists or not in the same line PHP

How can i check if exists or not in the same line something like that but it dosen't work : 

<td><?= isset([$a['type1']]) ? [$a['type1']] : "0"; ?></td>

This's my code : 

<td align="center" valign="top" class="textContent">                                                        
   <h2 style="text-align:center;font-weight:normal;font-  family:Helvetica,Arial,sans-serif;font-size:23px;margin-bottom:10px;color:#72C8F3;line-height:135%;">Error1 : '.($a["type1"]).' <br/>Error2 : '.($a["type2"]).'<br/>Error3 : '.($a["type3"]).'</h3>
</td>

Thanks for any help.

Upvotes: 2

Views: 1907

Answers (2)

atoms
atoms

Reputation: 3093

You can use the ternary operator as followed. Note you don't need to wrap the array in '[]'

<?php echo (isset($a['type1']) ? $a['type1'] : 0); ?>

If you want to check all are set you could use;

<?php echo ( isset($a['type1']) && isset($a['type2']) && isset($a['type3'] ) ?  $a['type1'] : 0 ); ?>

To simplify further as suggested by Magnus Eriksson:

<?php echo ( isset($a['type1'], $a['type2'], $a['type3']) ?  $a['type1'] : 0 ); ?>

If you wish to check for just one use the or/double pipe || expression

<?php echo ( isset($a['type1']) || isset($a['type2']) || isset($a['type3'] ) ?  $a['type1'] : 0 ); ?>

Upvotes: 3

GokulSrinivas
GokulSrinivas

Reputation: 383

PHP 7 introduces the so called null coalescing operator which simplifies the statements to:

$var = $var ?? "default";

So, your code would become

<td> <?php echo $a['type1'] ?? "0"; ?> </td>

Upvotes: 4

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